The fact Benton is a warrant officer, having been promoted in the first Fourth Doctor serial, Robot, places it after that serial, but presumably prior to his departure from UNIT in the late 1970s as revealed in the serial Mawdryn Undead. In September 2015, the film was released on DVD On his way to UNIT HQ in order to deliver some radioactive materials, Warrant Officer John Benton has an unexpected flashback to his childhood in Lancashire. After visiting the grave of his older brother Chris, Benton has a further flashback to his childhood in 1944.
The fact Benton is a warrant officer, having been promoted in the first Fourth Doctor serial, Robot, places it after that serial, but presumably prior to his departure from UNIT in the late 1970s as revealed in the serial Mawdryn Undead.
det
Definite=Def|PronType=Art
the
The
DET
DT
nsubj
Number=Sing
fact
fact
NOUN
NN
nsubj
Number=Sing
Benton
Benton
PROPN
NNP
cop
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
be
is
AUX
VBZ
det
Definite=Ind|PronType=Art
a
a
DET
DT
compound
Number=Sing
warrant
warrant
NOUN
NN
acl:relcl
Number=Sing
officer
officer
NOUN
NN
punct
,
,
PUNCT
,
aux
VerbForm=Ger
have
having
AUX
VBG
aux:pass
Tense=Past|VerbForm=Part
be
been
AUX
VBN
advcl
Tense=Past|VerbForm=Part|Voice=Pass
promote
promoted
VERB
VBN
case
in
in
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Degree=Pos|NumType=Ord
first
first
ADJ
JJ
amod
Degree=Pos|NumType=Ord
fourth
Fourth
ADJ
JJ
compound
Number=Sing
Doctor
Doctor
PROPN
NNP
obl
Number=Sing
serial
serial
NOUN
NN
punct
,
,
PUNCT
,
appos
Number=Sing
Robot
Robot
PROPN
NNP
punct
,
,
PUNCT
,
root
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
place
places
VERB
VBZ
obj
Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs
it
it
PRON
PRP
case
after
after
ADP
IN
det
Number=Sing|PronType=Dem
that
that
DET
DT
obl
Number=Sing
serial
serial
NOUN
NN
punct
,
,
PUNCT
,
cc
but
but
CCONJ
CC
advmod
presumably
presumably
ADV
RB
case
Degree=Pos
prior
prior
ADJ
JJ
fixed
to
to
ADP
IN
nmod:poss
Case=Gen|Gender=Masc|Number=Sing|Person=3|Poss=Yes|PronType=Prs
his
his
PRON
PRP$
conj
Number=Sing
departure
departure
NOUN
NN
case
from
from
ADP
IN
nmod
Number=Sing
UNIT
UNIT
PROPN
NNP
case
in
in
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Degree=Pos
late
late
ADJ
JJ
nmod
Number=Plur
1970s
1970s
NOUN
NNS
mark
as
as
SCONJ
IN
acl
Tense=Past|VerbForm=Part
reveal
revealed
VERB
VBN
case
in
in
ADP
IN
det
Definite=Def|PronType=Art
the
the
DET
DT
amod
Degree=Pos
serial
serial
ADJ
JJ
compound
Number=Sing
Mawdryn
Mawdryn
PROPN
NNP
obl
Number=Sing
Undead
Undead
PROPN
NNP
punct
.
.
PUNCT
.
In September 2015, the film was released on DVD
case
in
In
ADP
IN
obl
Number=Sing
September
September
PROPN
NNP
nummod
NumForm=Digit|NumType=Card
2015
2015
NUM
CD
punct
,
,
PUNCT
,
det
Definite=Def|PronType=Art
the
the
DET
DT
nsubj:pass
Number=Sing
film
film
NOUN
NN
aux:pass
Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin
be
was
AUX
VBD
root
Tense=Past|VerbForm=Part|Voice=Pass
release
released
VERB
VBN
case
on
on
ADP
IN
obl
Number=Sing
dvd
DVD
PROPN
NNP
On his way to UNIT HQ in order to deliver some radioactive materials, Warrant Officer John Benton has an unexpected flashback to his childhood in Lancashire.
case
on
On
ADP
IN
nmod:poss
Case=Gen|Gender=Masc|Number=Sing|Person=3|Poss=Yes|PronType=Prs
his
his
PRON
PRP$
obl
Number=Sing
way
way
NOUN
NN
case
to
to
ADP
IN
compound
Number=Sing
UNIT
UNIT
PROPN
NNP
nmod
Number=Sing
HQ
HQ
PROPN
NNP
mark
in
in
SCONJ
IN
fixed
Number=Sing
order
order
NOUN
NN
mark
to
to
PART
TO
advcl
VerbForm=Inf
deliver
deliver
VERB
VB
det
some
some
DET
DT
amod
Degree=Pos
radioactive
radioactive
ADJ
JJ
obj
Number=Plur
material
materials
NOUN
NNS
punct
,
,
PUNCT
,
compound
Number=Sing
Warrant
Warrant
PROPN
NNP
compound
Number=Sing
Officer
Officer
PROPN
NNP
nsubj
Number=Sing
John
John
PROPN
NNP
flat
Number=Sing
Benton
Benton
PROPN
NNP
root
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
have
has
VERB
VBZ
det
Definite=Ind|PronType=Art
a
an
DET
DT
amod
Degree=Pos
unexpected
unexpected
ADJ
JJ
obj
Number=Sing
flashback
flashback
NOUN
NN
case
to
to
ADP
IN
nmod:poss
Case=Gen|Gender=Masc|Number=Sing|Person=3|Poss=Yes|PronType=Prs
his
his
PRON
PRP$
nmod
Number=Sing
childhood
childhood
NOUN
NN
case
in
in
ADP
IN
nmod
Number=Sing
Lancashire
Lancashire
PROPN
NNP
punct
.
.
PUNCT
.
After visiting the grave of his older brother Chris, Benton has a further flashback to his childhood in 1944.
mark
after
After
SCONJ
IN
advcl
VerbForm=Ger
visit
visiting
VERB
VBG
det
Definite=Def|PronType=Art
the
the
DET
DT
obj
Number=Sing
grave
grave
NOUN
NN
case
of
of
ADP
IN
nmod:poss
Case=Gen|Gender=Masc|Number=Sing|Person=3|Poss=Yes|PronType=Prs
his
his
PRON
PRP$
amod
Degree=Cmp
old
older
ADJ
JJR
nmod
Number=Sing
brother
brother
NOUN
NN
appos
Number=Sing
Chris
Chris
PROPN
NNP
punct
,
,
PUNCT
,
nsubj
Number=Sing
Benton
Benton
PROPN
NNP
root
Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin
have
has
VERB
VBZ
det
Definite=Ind|PronType=Art
a
a
DET
DT
amod
Degree=Pos
further
further
ADJ
JJ
obj
Number=Sing
flashback
flashback
NOUN
NN
case
to
to
ADP
IN
nmod:poss
Case=Gen|Gender=Masc|Number=Sing|Person=3|Poss=Yes|PronType=Prs
his
his
PRON
PRP$
nmod
Number=Sing
childhood
childhood
NOUN
NN
case
in
in
ADP
IN
obl
NumForm=Digit|NumType=Card
1944
1944
NUM
CD
punct
.
.
PUNCT
.